Results 41 to 50 of about 11,871 (158)

On the Time Variable Rotation Measure in the Core Region of Markarian 421

open access: yesGalaxies, 2017
In this conference contribution, we discuss and interpret the time variable rotation measure (RM) detected in the core region of the TeV blazar Markarian 421 (Mrk 421).
Rocco Lico   +3 more
doaj   +1 more source

Chiral symmetry breaking and restoration by helical magnetic fields in AdS/CFT

open access: yesJournal of High Energy Physics
We study the effects of helical magnetic fields on chiral symmetry breaking within the AdS/QCD framework using the D3/D7-brane model. By analyzing the brane embeddings, we obtain three types of massless solutions, corresponding to three phases with ...
Martí Berenguer   +4 more
doaj   +1 more source

Effect of Interplay between Parallel and Perpendicular Magnetic and Electric Fields on Partial Discharges

open access: yesEnergies, 2023
This paper reports on the influence of a magnetic field on the dynamics of partial discharges (PDs) in two distinct configurations with respect to the mutual orientation of electric fields.
Marek Florkowski
doaj   +1 more source

Prediction of Axial Asymmetry in Jovian Magnetopause Reconnection

open access: yesGeophysical Research Letters, 2023
We show the possible existence of a significant axial asymmetry in the reconnection separator at the Jovian magnetopause using first‐principle, physics‐based global simulations. Under eastward interplanetary magnetic field (IMF) conditions near Jupiter's
Junjie Chen   +8 more
doaj   +1 more source

Relative magnetic field line helicity [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. Magnetic helicity is an important quantity in studies of magnetized plasmas as it provides a measure of the geometrical complexity of the magnetic field in a given volume. A more detailed description of the spatial distribution of magnetic helicity is given by the field line helicity, which expresses the amount of helicity associated to ...
Moraitis, K.   +3 more
openaire   +5 more sources

Theory of the Kinetic Helicity Effect on Turbulent Diffusion of Magnetic and Scalar Fields

open access: yesThe Astrophysical Journal
Kinetic helicity is a fundamental characteristic of astrophysical turbulent flows. It is not only responsible for the generation of large-scale magnetic fields in the Sun, stars, and spiral galaxies, but it also affects turbulent diffusion, resulting in ...
Igor Rogachevskii   +2 more
doaj   +1 more source

Real-space observation of non-collinear spin structure in centrosymmetric TbGa rare-earth magnet

open access: yesAIP Advances, 2022
The exploration of non-collinear spin texture in the f-electron-based rare-earth magnets has attracted fascinating interest for its fundamental physics and potential spintronic applications.
Yang Gao   +12 more
doaj   +1 more source

Cosmological magnetic fields from primordial helicity

open access: yesPhysical Review D, 2000
Primordial magnetic fields may account for all or part of the fields observed in galaxies. We consider the evolution of the magnetic fields created by pseudoscalar effects in the early universe. Such processes can create force-free fields of maximal helicity; we show that for such a field magnetic energy inverse cascades to larger scales than it would ...
Field, George B., Carroll, Sean M.
openaire   +2 more sources

Coherent Resonant Soft X-ray Scattering Study of Magnetic Textures in FeGe

open access: yesQuantum Beam Science, 2018
Coherent resonant soft X-ray scattering was utilized to examine the magnetic textures in a thin plate of the cubic B20 compound FeGe. Small-angle scattering patterns were measured with controlled temperatures and magnetic fields exhibiting magnetic ...
Victor Ukleev   +7 more
doaj   +1 more source

LISA and γ-ray telescopes as multi-messenger probes of a first-order cosmological phase transition

open access: yesAstronomy & Astrophysics
Aims. We study two possible cosmological consequences of a first-order phase transition in the temperature range of 1 GeV to 103 TeV: the generation of a stochastic gravitational wave background (SGWB) within the sensitivity of the Laser Interferometer ...
Roper Pol A.   +4 more
doaj   +1 more source

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